Multiple choice

Lactometer is used to measure the density of

  1. water

  2. milk

  3. sulphuric acid

  4. nitric acid

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A lactometer is a specialized instrument used to measure the density and purity of milk. It works on the principle of buoyancy and helps determine if milk has been adulterated with water or other substances.